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Human dermal endothelial cells treated with sno U1 dsRNA and antimicrobial peptide LL-37

ABSTRACT: Human dermal endothelial cells treated with sno U1 dsRNA and antimicrobial peptide LL-37

PROVIDER: PRJNA530257 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR8833301.fastq.gz	Fastqsanger.gz
	SRR8833302.fastq.gz	Fastqsanger.gz
	SRR8833303.fastq.gz	Fastqsanger.gz
	SRR8833304.fastq.gz	Fastqsanger.gz

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Human dermal endothelial cells treated with sno U1 dsRNA and antimicrobial peptide LL-37

Project description:Next generation sequencing (RAN-seq) was used to study the global effects of co-treatment of endothelial cells with U1 and LL-37. This lead to identification of differentially regulated genes and enriched pathways

2019-04-02 | GSE129160 | GEO

Human dermal endothelial cells co-treated with dsRNA mimic poly IC and antimicrobial peptide LL-37

Project description:Next generation sequencing (RNA-seq) was used to study the global effects of co-treatment of endothelial cells with poly IC and LL-37. This lead to identification of differentially regulated genes and enriched pathways

2019-04-02 | GSE129152 | GEO

RNA sequencing analysis for keratinocytes treated with U1 dsRNA and LL34 Alanine Scan Peptides

Project description:Summary: We looked at the global changes in gene expression in keratinlcytes treated with selected LL34 Alanine mutants and U1 dsRNA. Methods: Normal human keratinocytes were treated with 2.5 ug/ml U1 dsRNA with or with out co-treatment with LL34 Parent Peptide/ LL34 I24A or LL34 L31A for 18 h. Conclusions: Global gene expression analysis showed pathways related to Type 1 interferon signaling and cytokines where mainly repressed in cells co-treated with either LL34 I24A/ LL34 L31A peptide and U1 dsRNA in comparision to cells co-treated with LL34-Parent peptide and U1 dsRNA.

2021-03-03 | GSE168050 | GEO

Human dermal endothelial cells co-treated with dsRNA mimic poly IC and antimicrobial peptide LL-37

Project description:Human dermal endothelial cells co-treated with dsRNA mimic poly IC and antimicrobial peptide LL-37

| PRJNA530247 | ENA

RNA-seq analysis of growth factor response of NHEKs to antimicrobial petide LL-37 and dsRNA mimic Poly(I:C)

Project description:In this study, we analyzed how non-coding double stranded RNA (dsRNAs) act as a damage associated molecular pattern (DAMP) in the skin, and how the human cathelicidin AMP LL-37 might influence growth factor production in response to this DAMP.

2016-05-23 | GSE79343 | GEO

Proteomic adaptation of Streptococcus pneumoniae to the human antimicrobial peptide LL-37

Project description:Secreted antimicrobial peptides (AMPs) are an important part of the human innate immune system and prevent local and systemic infections by inhibiting bacterial growth in a concentration dependent manner. In the respiratory tract, the cationic peptide LL-37 is one of the most abundant AMPs and capable of building pore complexes in usually negatively charged bacterial membranes, leading to destruction of bacteria. However, adaptation mechanisms of several pathogens to LL-37 are already described and are known to weaken the antimicrobial effect of the AMP, for instance, by repulsion, export or degradation of the peptide. This study examines proteome wide changes in Streptococcus pneumoniae D39, the leading cause of bacterial pneumonia, in response to physiological concentrations of LL-37 by high resolution mass spectrometry. Our data indicate that pneumococci may use some of the known adaptation mechanisms to reduce the effect of LL-37 on their physiology, too. Additionally, several proteins seem to be involved in resistance to AMPs which have not been related to this process before, such as the teichoic acid flippase TacF (SPD_1128). Understanding colonization and infection relevant adaptations of the pneumococcus to AMPs, especially LL-37, could finally uncover new drug targets to weaken the burden of this widespread pathogen.

2020-03-19 | PXD016511 | Pride

Transcriptional profiling of THP-1 cells on treatment with LL-37 and nano conjugated LL-37

Project description:Gene expression in THP-1 cells treated for 6 hours with CNT and GNP conjugated with LL-37, LL-37 spiked as well as free LL-37: Reference (Total RNA Mixture of all samples) vs. treated cells

2017-06-17 | GSE98630 | GEO

The human cathelicidin antimicrobial peptide LL-37 promotes the growth of the pulmonary pathogen Aspergillus fumigatus.

Project description:Aspergillus fumigatus contributes to invasive and allergic pulmonary disease in immunocompromised individuals. The pulmonary mucus of cystic fibrosis (CF) patients displays elevated levels of the pleiotropic cathelicidin antimicrobial peptide LL-37 and the aim of this work was to assess the effect of LL-37 on the growth A. fumigatus. Exposure of A. fumigatus conidia to high concentrations of intact LL-37 (100 μg/ml) for 24 hours had a positive effect on growth (277.45 ± 22.59% (p < 0.01)) whereas scrambled LL-37 (76.45 ± 7.46%) did not. Exposure of 24 hour pre-formed mycelium to 5 μg/ml LL-37 for 48 hours increased hyphal wet weight significantly (4.37 ± 0.23 g, p < 0.001) compared to the control (2.67 ± 0.05 g). Amino acid leakage from mycelium was observed in the presence of LL-37 and gliotoxin secretion was increased at 24 hours from LL-37 exposed hyphae (169.1 ± 6.36 ng/mg hyphae, p < 0.05) compared to the control (102 ± 18.81 ng/mg hyphae). Quantitative proteomic analysis of 24 hour LL-37 treated hyphae revealed an increase in the abundance of proteins associated with growth (eIF-5A (16.3 fold increased), tissue degradation (aspartic endopeptidase (4.7 fold increased)) and allergic reactions (Asp F13 (10 fold increased)). By 48 hours there was an increase in proteins indicative of cellular stress (glutathione peroxidase (9 fold increased)), growth (eIF-5A (6 fold increased), and virulence (ribonuclease mitogillin (3.7 fold increased). These results indicate that LL-37 stimulates A. fumigatus growth and this may result in increased fungal growth and secretion of toxins in the lungs of CF patients.

2018-05-22 | PXD008143 | Pride

ExPEC OmpT LL-37 Cleavage LC-MS

Project description:Colicin V (ColV)-like plasmids (ColVLPs) are virulence plasmids frequently carried by extra-intestinal pathogenic E. coli (ExPEC) that cause human and avian infection. ColVLPs encode OmpTp, an outer membrane protease with the capacity to cleave the antimicrobial peptide LL-37, which is expressed in the human urinary tract. Homologs of OmpTp also exist on the E. coli chromosome, and differences in enzyme activity and cleavage profiles are largely uncharacterised. For this section of the project, the capacity of each OmpT variant to cleave LL-37 is tested, by incubating isogenic E. coli strains expressing each OmpT homolog with LL-37, and subsequently using LC-MS to quantify LL-37 cleavage products.

2025-11-21 | PXD060817 | Pride

Comparative analysis of gene expression in response to LL-37 treatment

Project description:To identify the potential LL-37-responsed genes, we treated cells with or without LL-37 and their correspondent transcriptional profiles were compared. Total 104 significant genes were identified. Among them, 70 genes are upregulated in repsonse to LL-37 while 34 genes are downregulated in comparison with the control cells.

2016-03-11 | GSE45177 | GEO

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